Roof rack



FIG. 1 is a top, rear, left perspective view of a roof rack, showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a left elevation view thereof;

FIG. 5 is a right elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a top, rear, left perspective view thereof, shown in a state of use.

The broken lines, showing an attachable component in FIG. 8 , illustrate environmental structure that forms no part of the claimed design. 

CLAIM I claim the ornamental design for a roof rack, as shown and described. 